Shaping machine



H. C- BRAMEL SHAPING MACHINE Jan. 3, 1950 3 Sheets-Sheet 1 Filed Jan. 22, 1946 HENRY c. BRAMEL,

Jan. 3, 1950 H. c. BRAMEL 2,493,103

SHAPING MACHINE Filed Jan. 22, 1946 3 Sheets-Sheet 2 awe/whom Z9 HENRY C. BRAMEL,

Jan. 3, 1950 H. c. BRAMEL 2,493,103

SHAPING MACHINE Filed Jan. 22, .1946 3 Sheets-Sheet 3 QPWW HENRY C.. BR AMEL,

Patented Jan. 3, 1950 UNITED STATES PATENT OFFICE SHAPING MACHINE Henry C. Bramel, Toledo, Ohio Application January 22, 1946, Serial No. 642,666

4 Claims. 1

This invention relates to shaping machines, and more particularly to shaping machines having automatic work feeding mechanisms.

A main object of the invention is to provide a novel and improved shaping machine of simple construction and efficient operation, said machine being provided with improved means for adjusting the length of stroke of its tool carrying member and for adjusting the rate of feed and the direction of feed of the work.

A further objectof the invention is to provide an improved shaping machine which is economical to manufacture, easy to operate and is adapted to accommodate a wide range of thicknesses of work by the use of adjusting shim plates in the work supporting portion thereof.

Further objects and advantages of the invention will be apparent from the following description and claims and from the accompanying drawings, wherein:

Y Figure 1 is a side elevational view, partly broken away, of a shaping machine constructed in accordance with the present invention.

Figure 2 is a plan view of a shim block adapted to be employed in the work supporting portion of the shaping machine of Figure 1.

Figure 3 is a side elevational view of the shim block of Figure 2.

Figure 4 is a transverse cross-sectional view taken on line 44 of Figure 1.

Figure 5 is a top plan view of the shaping ma chine of Figure 1.

Figure 6 is a front end elevational view of the shaping machine of Figure 1.

Figure 7 is a detail view showing the components oi? the stroke adjusting mechanism employed in the shaping machine of Figure 1.

Figure 8 is afragmentary view of the portion of the side wall of the housing having the scale means which cooperates with the pointer.

Referring to the drawings, ll designates the base of the machine, said base comprising an integral work supporting portion l2 and an integral housing l3 for the driving mechanism of the machine. slidably mounted in dovetailed grooves formed in the top of housing [3 is a slide plate l4 carrying at its forward end a semi-circular tool post supporting disc [5 having an arcuate slot l9 formed therein. Adjustably supported in slot l6 and secured to disc I5 is a tool post housing member I! which has mounted therein a vertically adjustable tool post l8 carrying at its lower end a tool holder I9 in which a shaper tool 20 is secured. An adjusting screw 2| is provided for raising and lowering tool post l8 with respect to housing member ll.

Work supporting base portion I2 is formed with a pair of transverse guide ribs 22, 22 on which is slidably mounted for transverse guided motion thereon a table member 23. Secured to table member 23 is a vise block member 24 having formed thereon a stationary vise jaw element 25. slidably mounted for longitudinal movement in vise block member 24 is a movable vise jaw element 26 which is provided with a clamping screw 21 threaded through a stationary lug 28 formed on block member 24 and carrying a handle 29 for rotating screw 21 to move jaw element 26 with respect to stationary jaw element for inserting a work piece between or removing the work piece from the jaw elements. Where a work piece of relatively small thickness is being machined, a shim block 30 may be employed between table member 23 and vise block 24, said shim block being formed at its corners with openings 3| for the passage of securing bolts therethrough. This avoids the necessity of lowering tool post I8 an excessive amount to reach a small work piece and thereby prevents chattering of the tool during the shaping operation.

Pivotally mounted in housing 13 on a transverse shaft 32 is an oscillating drive arm 33 which is connected to slide plate l4 by a link 34 which carries at its end a clamping screw member 35 arranged for adjustable securement in a longitudinal slot 36 formed in slide plate l4. Arm 33 is formed with an elongated slot 31 in its intermediate portion which receives a block member 38. Block member 38 is rotatably secured to a bar element 39 which has secured thereto at its top end a shouldered arm 40 having an intermediate nut portion 4| and carrying a pointer element 42.

Secured to the bottom end of bar element 39 is a shouldered lug element 43 which is parallel to arm 40. Journalled in the side wall of housing l3 in a bearing element 44 integral with said housing wall is a gear member 45 having a web 46. Web 46 is formed with a first radial slot 41 which slidably receives shouldered arm 40 and with a second radial slot 48 diametrically opposed to slot 41 which slidably receives shouldered lug element 43. Gear member 45 is provided with a hub collar 49 and is formed with a peripheral lug 50 adjacent slot 41. Pivotally supported in lug 50 and collar 49 is a screw 5| arranged parallel to slot 41. Screw 5| is threadedly engaged with nut portion 4| of arm 40. The top end of screw 5! is formed with a hexagonal socket 52 adapted to receive the end of a hexagonal wrench for rotating screw 5! to vary the radial position of arm 40 with respect to gear 45 and to thereby vary the position of block 38 in slot 31 of the oscillating driving. arm 33. This varies the stroke of slide plate M. A longitudinal slot 53 is formed in plate 14 through which the shank of a hexagonal wrench 54 may be inserted to engage socket 52 of screw when adjustment of the stroke of the slide plate is to bemade.

Gear fi is driven from a pulley- 55'throu'gh a train of reduction gears provided with suitable speed changing means forming no part of this invention.

Secured to hub collar 49 is a shaft 56"which extends through bearing member and the'side wall of housing 13 and carries rigidly secured to its outer end a bracket member 5T'having alongitudinally slotted diametral arm 58. Pivotally secured to arm 58 by an adjustable post member ..59 which .may beclampedinany desired position in the diametral slotted arnil'58'is. a. linkififl, pivotally. connected .to'..a. crank-arm?! carried by a transverse shaft-B2 jdurnalledto base I 1 adjacent the. rear vtransverseedgelof Work .supportingfportion 12. Shaft; 62 carries .anLidler gear 63 which .meshes-with-a work feed gear G L-mounted on a transverse threaded shaft-.65 threa'dedly engaging table vIne1nber123. The. end. ofQsha'ftT65 -is provided with ahan'dle I66 for manually rotating .the. shaft to I feed .the. work .to' the shaping tool by hand -v. hen.so.desird. I ShaTtIGZ carries apawl arm fil. having mounted thereina reversible spring biased pawl elementi 68 which resilientlyen'gages the teeth. of idler .gearT6'3L f'o'iz'intermittently. ro-

tating said :gear. in.iforward..steps responsive to .the. reciprocation .of.-1ink'60. The rate of. rotation .of gear 63, andhence .the..'.rate of .feed ofthe work, i may be adjusted .by adjusting the radial position of post member-59..onlslottd arm-58. 1T0 .reverse the Idirection of. feed, postmer'nber 59Iis moved to a position =l8'0.out.of phase withits former .position insIdtted. arm -58 "and pawl .element .68 is .a'xiallyturnedll80 in.arin B1. Slotted arm. 581s provided .with. appropriate markings :to indicate various feed speeds.

,The. side .wall of housing i3 .is formed with a vertical slot (.69 adj acent: pointer element 42 .-so that said, I pointer .-ele.ment .mayLbe viewed from the outside.ofthemachine. Slot 69 isprovided with .appropriatemarkings.to-indicate:the various stroke lengths of..slide, plate 1.4.

Thefrontwall of. housing 134s cutout, asshown atf|0, .tocallow the tool..post'. str ucture-to beretracted to asubstantiallyfiushposition of .the tool holder. l 9 withrespectiosaid. front wall.

.Block 24 is .formed-imtwo. sections the upper section .being adjustablyosecured t0 the lower .sedtion by :bolts lLpassinglthrough arcuate slots '12 to allow angular adjustmentinfla horizontal .,plane:of theupper section withrespect'to the lower section of the block, tothereby allow the i work tobe angularly positioned. in. itshorizontal plane as=.desired.

While a specific. embodiment of ashapingrmachine hasbeen .discloseddn the foregoing description, it will beunderstood that various modifications withinlthespirit: of theainvention may occur .to those-skilled inathe art. Therefore'it .is. intended that no limitationszbe placedon the T invention other than as defined by the scope of the. appended claims.

What is claimed .is:

1. Ina shapingmachine including areciprocable toolslide, .a. housing slidably .mountingv-said slide and including a side wall, said slide compris- 4 ing a top wall for said housing, means mounting a rotary drive member in said housing, a driven arm pivotally mounted at its lower end in said housing and pivotally connected at its upper end to said slide to drive the same; the improvement comprising said drive member being formed with a pair of diametral slots therein, a bar element, a laterally-directed arm, means mounting said arm'i'onone end=of saidwelement; saidiarm including-1a portion-i slidable 'in. oneizofesaid slots, said arm including an integral nut extending laterally abeyond said drive member, said arm including an integral pointer extending laterally beyond "said-nut, a lug carried by the other end of said bar element and slidable in said other slot, a

radially-directed screw carried by said drive member a n'dthreadedly' engaged with said nut to adjust'said nut and bar member radially of said drive member upon rotation of said screw, means pperatively connecting said bar member to said drivearnrto'drivethe" latter andsaid slideupon rotation'of said' drivemem'beiy said screw being formed at oneend'with' took-engaging meansysaid "slide' being formedvri'th'an openingtherein over -said"screw and adapted-"for'the' insertion 'of'a screw-adjusting tool -'therethrough,' said mane;- terminating inwardly of 'said housing adjacent said side wall, said sidewall 'being'formedwitna slot thereinin the region ofsaid pointer; and

said last-named slot including meansco'operatin'g with said pointer'designatingthe radial adjustment of said bar element.

2. In a shaping'machinefincluding "a reciprocable toolslide, 'a housingslidably mountings'aid slide'a'n'd including aside wall; said slide comprising a top wall for-said housing,- meansmountinga rotary drive'member= in-said' housing," a drive arm pivotally mounted'at its" lower-end'in said housing and pivotally connected "at 3 'its upper end to said slide to drive the samejthe improv'emenlz comprising a bar, means mountingsaid bar on said drive inei'nber *for rotation "therewith -'-an"d adjustment='radiallythereof, said bar including an integral -1aterarextension, said extension ineluding a nut-and-"apointer; a =radially directed screw carried by 'said drive' member andthreacledly "engaging said-:nut to a'rljQ-ist said bar radially of said drive member upon rotation'of said screw, *ssa'i'd Eslide ib'ei-ngfformedwithsan access opening therein for rotating saidiscrew,-said--side wall being "formed toprovide scale "means cooperating with said pointer to indicate the' radial position "of saidbar -andimeans operativey connecting said bar to said drive arm-ito idriveithe i'atter and said 5 'slideupon rotation. of'ssaidrdrivemnember.

'3. In :a: shapingl'macliine including a 'reciprocable toorslide 'vaehousing slidably mounting said slide rand including: atside 1waill,-.-'said-.-siide- :comprising"a-top'wall for?saidzhousingfmeans mountm ing arotary drive rmember-iin ssai'd 'lro'using a '65- on said driVe me'mb-er Tor-rotation therewith a'nd adjustment radially thereof, said bar including an integral. lateral extension, said sex-tension i ineluding a pointergmeans for adjusting-said bar radiallyot-saiddrivemember, said side wall being 70 for-med to provide scale means cooperating with .saidpointer to indicate-the radial position ofzsaid bar, and 'means' operatively connecting said :bar to-said drive armltozdrivethe l-atter-andsaid slide .uponrotation of said drive member.

4. In a shaping machine including a reciprocable tool slide, a housing slidably mounting said slide and including a side wall, said slide comprising a top wall for said housing, means mounting a rotary drive member in said housing, a drive arm pivotall mounted at its lower end in said housing and pivotally connected at its upper end to said slide to drive the same; the improvement comprising a bar, means mounting said bar on said drive member for rotation therewith and adjustment radially thereof, said bar including an integral lateral extension, said extension including a nut, a radially-directed screw carried by said drive member and threadedly engaging said nut to adjust said bar radially of said drive member upon rotation of said screw, said slide being formed with an access opening therein for rotating said screw, and means operatively connecting said bar to said drive arm to drive the latter and said slide upon rotation of said drive member.

HENRY C. BRAMEL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

